js删除字符串中的子串

const removeString = (string, separator) => {
   //我们分割字符串并使其不带分隔符
   const separatedArray = string.split(separator);
   //我们用空字符串将splittedArray加入
   const separatedString = separatedArray.join("");
   return separatedString;
}
const str = removeString('this-is-a-sting', '-');
console.log(str);